Roi lsm (rebased onto dev_5_0)


This is the same as gh-3184 but rebased onto dev_5_0.

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Allow user to view ROI generated by 3rd party
Problem noticed while investigating https://www.openmicroscopy.org/qa2/qa/feedback/10343/

To test the PR:
 * Download the zip from QA 10343 or 10344
 * Import sone of  ```.lsm``` NOT the ```.mdb``
 * If roi count > 0. Open the image in main viewer and launch the measurement tool
 * Check that the ROIs are displayed. They do not have a z nor t.